This pilot study was designed to determine the feasibility of randomizing extremely low birth weight (ELBW) infants <28 weeks' gestation who required resuscitation to one of two resuscitation methods, either: (a) 100% oxygen by facemask and continuous positive airway pressure (CPAP) or positive pressure ventilation (PPV) with positive end-expiratory pressure (PEEP), if the infant required PPV (the intervention group); or (b) 100% oxygen and no CPAP and no PEEP if the infant required PPV (the control group).